ADS1256 Board

From: Raspberry Pi Compatible Components Class: herosdevices.hardware.raspberrypi.waveshare.WaveshareADS1256

Driver Quality Index: beta

This class represents one channel of the Waveshare ADS1256 ADC board.

Note

Concurrent access to the SPI device is not possible. This means only one object with a given spi_bus and spi_device can exist.

If you would like to access individual channels of this ADC consider creating objects of :class:WaveshareADS1256Channel in addition to an object of this class.

Arguments

Bold arguments are mandatory. For more information on the listed arguments refer to the class documentation: herosdevices.hardware.raspberrypi.waveshare.WaveshareADS1256 If parameters appear in this list but not in the class definition, please recursively check the linked base classes for the definition of the parameter.

Argument	Type	Default Value	Description
spi_bus	<class ‘int’>	0	number of the SPI bus
spi_device	<class ‘int’>	0	number of the SPI device in bus.
rst_pin	<class ‘int’>	18
drdy_pin	<class ‘int’>	17
gain	<class ‘int’>	1	gain to set in the PGIA
drate	<class ‘str’>	2000SPS	conversion rate of the ADS1256. See .ads1256.ADS1256_DRATE for valid values
vref	<class ‘float’>	5.0	Reference voltage given to the ADC. Usually 3.3V or 5V
channel_name_map	dict[str, str] | None	None	dict to map the internal names of the pin (AIN0…AIN7) to user-definable names. The names are used if the operated as HEROS datasource.

Example JSON for BOSS

The following JSON strings can be used to start a HERO device representation of WaveshareADS1256 using BOSS.

{
    "_id": "my_WaveshareADS1256",
    "classname": "herosdevices.hardware.raspberrypi.waveshare.WaveshareADS1256",
    "arguments": {
        "spi_bus": 0,
        "spi_device": 0,
        "rst_pin": 18,
        "drdy_pin": 17,
        "gain": 1,
        "drate": "2000SPS",
        "vref": 5.0,
        "channel_name_map": {
            "AIN0": "my_voltage",
            "AIN2": "custom_sensor_3"
        }
    }
}

^{generated from signature}

Inheritance